Panasonic CU-2E18NBU-1 Installation Manual
Contents
1. 3 16 Turn the piping end down to avoid the metal powder entering the pipe 3 Please make flare after inserting the flare nut onto the copper pipes Wiring automatic correct example Terminal block WIRING ERROR CHECK This product is capable of correcting wiring errors automatically by following these procedures A B _ p 1 Confirm the valve on the liquid side and gas side is open 3 2 Press WIRING CHECK switch SW3 on the display printed circuit board for Cc 3 Improper tlaring0 TT Spr yf InciinedsStrface Cra ked Uneven damaged thickness When property flared the internal surface Pipe Bar Reamer eM Ye Point down Copper pipe ieg Clamp handle Red arrow mark more than 10 seconds to start wiring check operation FromRoomB From Room A to the 1 To cut 2 To remove burrs 3 To flare of the flare will evenly shine and be of tothe living bedroom even thickness Since the flare part Wiring check process will complete in approximately 10 minutes However room comes into contact with the connections wiring check operation will not start within 3 minutes2. Carry out test running to confirm that no abnormality occurs after the installation Then explain to user the operation care and maintenance as stated Respective indoor unit installation procedure shall refer to Unit A Unit B in instructions Please remind the customer to keep the operating instructions for future reference instruction manual provided in the indoor unit packaging A WARNING gt Allowable piping length gt 8 For wire stripping and connection requirement refer to the diagram below B Outdoor Unit cu2s18 Terminals on the indoor unit 12 3 12 3 9 Secure the power supply cord and connecting cables onto the control board with the holder Do not stall outdoar unit near handrall af varanda Whan instaling air conditioner unit on veranda of a high rise buiding child may aimb up to outleor Colour of wires Connecting cable EE EE 10 Attach the control board cover metal and resin and valve cover back to the original position with screw unit and cross over the handrail causing an accident A Allowable piping length of each indoor unit min max 9 8 ft 82 0 ft Do not use unspecified cord modified cord joint cord or extension cord for power supply cord Do not share the Single outlet with other electrical Terminals on the outdoor unit ufieli ets Olli1f 2 s 1 T i li Po tact insulatic it will lectrical shock or fire Allowable total piping length of all indoor unit 164 0 ft or less is equipment
3. TAE Message O Flashing A CAUTION A 315 16 valve O 0 0 Pump down operation progress Fig 1 Be sure to check for gas leakage g ojojo 3 minutes before operation end Do not install the unit at place where leakage of flammable gas may occur In case gas leaks and accumulates at surrounding of the unit it may cause fire Mora than 3 15 16 i z Pere 2 lolo 2 minutes before operation end lore than 7 Do not release refrigerant during piping work for installation re installation and during repairing a refrigeration parts Take care of the liquid refrigerant it IT More than 11 13 16 kri Gas side way valve 2 o 1 minute before operation end may cause frostbite isle pump Pump down operation end Side view Top view Top view Closd Do not install this appliance in a laundry room or other location where water may drip from the ceiling etc LED 1 gt a sw1 PUMP DOWN Unit inch Lep2 o g SW2 OPERATION Do not touch the sharp aluminium fin sharp parts may cause injury E LED 3 0 oh A LED 4 O a Carry out drainage piping as mentioned in installation instructions If drainage is not perfect water may enter the room and damage the furniture Leps o E o SW3 WIRING LED 6 O CHECK Select an installation location which is easy for maintenance D Power supply connection to the room air conditioner Power supply cord shall be UL listed or CSA approved 3 conductor with minimum AWG12 wires Power supply point should be in an
4. easily accessible place for power disconnection in case of emergency In some countries permanent connection of this air conditioner to the power supply is prohibited Fix power supply connection to a circuit breaker for permanent connection INSTALL THE OUTDOOR UNIT CAUTION Use NRTL approved fuse or circuit breaker rating refers to name plate for permanent connection Ifmioron gauge value does not descend 500 microns take the following measures i er icror followi k Installati rk s a i 7 7 F pe 4 A S 3 itmay need two people to carry out the installation work A After selecting the best location start installation to Indoor Outdoor Unit Installation Diagram If the leak stops when the piping connections are tightened further continue working from step 3 1 Fix the unit on concrete or rigid frame firmly and horizontally with bolt nut 013 32 If the leak does not stop when the connections are retightened repair location of leak 2 When installing on a roof please consider strong winds and earthquakes Do not release refrigerant during piping work for installation and reinstallation CUTTING AND FLARING THE PIPING 3 Please fasten the installation stand firmly with bolt or nails Take care when handling the liquid refrigerant it may cause frostbite 1 Please cut using pipe cutter and then remove the burrs Model B D 2 Remove the burrs by using reamer If burrs is not removed gas leakage may be caused CU 2S18 5 5 32 14
5. must be appliances Poor contact poor insulation or over current will cause electrical shock or fire Wi piping leng i unit Power supply cord UNIT A UNIT B WIRE STRIPPING AND CONNECTING REQUIREMENT Miter Jel Do not tie up the power supply cord into a bundle by band Abnormal temperature rise on power supply cord may happen g g Outdoor unit located on upper side 49 2 ft or less Wie Stipp Height difference between indoor and outdoor unit mene Conductor fully Conductor over Conductor not Earth wire must be Yellow Do not insert your fingers or other objects into the unit high speed rotating fan may cause injury Outdoor unit located otherwise 24 6 ft or less nee 3 inserted inserted fully inserted Green Y G in colour and E S Outdoor unit located on upper side 24 6 ft or less connecting longer than other AC wires for Do not sit or step on the unit you may fall down accidentally Height difference between indoor unit Power Supply terminal board M safety reasons Outdoor unit located otherwise 49 2 ft or less Z Keep plastic bag packaging material away from small children it may cling to nose and mouth and prevent breathing pals os AD When installing or relocating air conditioner do not let any substance other than the specified refrigerant eg air etc mix into refrigeration cycle piping z No loose strand when inserted gap between ACCEPT PROHIBITED PROHIBITED Mixing of air etc will cause abnormal high press
6. OUTDOOR UNIT Panasonic F615180 7 SELECT THE BEST LOCATION 5 CONNECT THE CABLE TO THE OUTDOOR UNIT OUTDOOR UNIT Required tools for Installation Works 7 Reamer 8 Knife 40 6 Ibf ft 47 9 Ibf ft 73 8 Ibf ft Philips screw driver Level gauge 12 Megameter 13 Multimeter Installation parts you ic dril i If an awning is built over the unit to prevent direct sunlight or rain gt gt i Satrio dri hae Gore oA aa 2 Gan ene gatenor ae een 15 Vacuum pump os careful that heat radiation trom the condenser is nor obstructed Outdoor Unit Installation Diagram enoud pirenses W 1 Remove Control Board Cover Metal by loosening 2 TETA unta unite Hexagonal wrench 5 32 10 Measuring tape STON de DiI G There should no
7. after compressor caret ly check ine fare Anish Remove the control board cover resin from the outdoor unit by loosening three ane is Soppaa When eo a a es enO ae aoe J Der ii screws lare Nut malfunctioning wiring check will not start See QUICK GUIDE ca ares The LED 2 to 6 in display printed circuit board inside the outdoor unit indicate LED lighting sequence after a wiring correction PIPING amp ELECTRICAL SPECIFICATION Connecting the Piping to Outdoor Unit Screws Nee gt SS _ Connection Pipa Female side whether correction is possible or not and the status of the correction as shown Order of LED flashing 3 gt 2 r7 in the table below a Min pipe FEA ae 5 in Piping size Standard Max from Max Min total pipe a ogi Power OD ID Decide piping length and then cut by using pipe cutter Remove burrs from cut edge Control Board Cover Resin Applicable to Indoor ID amp Outdoor OD units Capacit Max length for Additional Power pai p Possive Combination Peders Bun Refrigerant pipe rmaton eesti ODto total length for refrigerant supply SUPPIY connection Make flare after inserting the flare nut locate at valve onto the copper pipe Liquid and Gas side of LED 2 3 4 5 6 Message Gas Liquid length each ID length additional gas wire size wire size 5 fae a 3 s cs so ROOM A B unit Align center of piping to valves and then tighten with torque wrench to the specified lt Torque Wre
8. connect digital micron gauge and to pull down to a value of 500 microns To make sure micron gauge a value 500 microns and close the low side valve of the charging set and turn off the vacuum pump Disconnect the vacuum pump house from the service port of the 3 way valve the terminal If connection or fixing is not perfect it will cause heat up or fire at the connection Tube connector Wire routing must be properly arranged so that control board cover is fixed properly If control board cover is not fixed perfectly it will cause fire or electrical shock This equipment must installed with an Earth Leakage Circuit Breaker ELCB or Ground Fault Current interrupter GFCI or Appliance Leakage Current Interrupter ALCI that has been certified by an NRTL Certified Testing Agency and that is suitable for the voltages and amperages involved Otherwise if may cause electrical shock and fire in case of equipment breakdown During installation install the refrigerant piping properly before running the compressor Operation of compressor without fixing refrigeration piping and a F ail 4 valves at opened condition will cause suck in of air abnormal high pressure in refrigeration cycle and result in explosion injury etc Outdoor Unit Installation Guidelines o ONN During pump down operation stop the compressor before removing the refrigeration piping Removal of refrigeration piping while compressor is operating Where a wall or other obstacle is i
9. ill be lluminated uhi normal operation starts 3 4 0 06 ft 100 Nem 73 8 Ibf ft f 4 Follow the product diagnosis procedure Check the diagnostic label at the control board cover 0 5 When LED 1 only is illuminated this indicates that outdoor unit is operating normally P M CHECK ITEMS n Blocked exhaust air flow from outdoor unit Mistake in wiring L Screw Smooth flow of the drain Reliable connection of the grand wire d Gas Leak Checking ji Reliable thermal insulation Looseness in terminal screw Pressure test to system to 400 PSIG with dry nitrogen in stages Thoroughly leak check the system Leakage of refrigerant Grounding Earth connection ENGLISH If the pressure holds release the nitrogen and proceed to section 4 al F61 51 80 PRINTED IN MALAYSIA 7
10. n the path of outdoor unit s intake or exhaust airflow follow the installation guidelines below and valves are opened will cause suck in of air abnormal high pressure in refrigeration cycle and result in explosion injury etc For any of the below installation patterns the wall height on the exhaust side should be 47 1 4 or less Tighten the flare nut with torque wrench according to specified method If the flare nut is over tightened after a long period the flare may break and cause PUMP DOWN OPERATION Operate the pump down according to the following procedures 1 Confirm the valve on the liquid side and gas side is open 2 Press PUMP DOWN switch SW1 on the display printed circuit board for more than 5 seconds Pump down cooling operation is performed for 15 minutes 3 Set the liquid side 3 way valve to close position and wait until the pressure gauge indicates 1 45 PSI 4 Immediately set the gas side valve to close position and then press the PUMP p Liquid shut off valve ija q Indoor unit Indoor unit Outdoor unit Indoor Unit Tube Connector Hexagonal wrench Liquid side g refrigerant gas leakage After completion of installation confirm there is no leakage of refrigerant gas It may generate toxic gas when the refrigerant comes into contact with fire Wall facing one side Walls facing tw
11. nch for Flare Nut oie Outdoor OD CU 2S18NBU 1 torque as stated in the table Bees CS S12 m All flashing Automatic correction impossible Indoor ID 2 UNITS OF CS S9NKUW 1 Liquid side o F LED 2 4 6 and LED 3 5 alternatively flashing Wiring check in progress Outdoor OD CU 2818NBU 1 5 5 208 230V Do not overtighten over tightening may cause gas leakage amp Flashing one after another Automatic correction completed Indoor ID 2 UNITS OF CS S12NKUW 1 16700 R410A Pena PEAR 246ft end gan azon jeson esen ozozini pioka aware aware M Flare Nut Other than above Unit has abnormally Note 4 Outdoor OD CU 2518NBU 1 i MOP 25A Piping size Torque a Connection Pipe If automatic correct is impossible check the indoor unit wiring and piping manually Indoor ID 1 UNIT OF CS S9NKUW 1 1 4 0 02 ft 18 Nem 13 3 Ibf ft NOTE 1 UNIT OF CS S12NKUW 1 J 7 pe Example a oor a 5 _ 7 b 1 For two rooms LED 4 and 5 are not illuminated after wiring operation is complete rw z rm wi r _ Ss is id Male side 2 If the outdoor air temperature is less than 41 F or unit has abnormality wiring operation will not start If total piping length of all installed indoor units is at 68 6 ft the quantity of additional refrigerant should be 0 6 o2 68 6 65 6 ft x 0 2 oz ft 0 6 oz 5 8 0 05 ft 65 Nem 47 9 Ibf f I Torque Wrench for Flare Nut 3 After wiring check operation is complete LED indication w
12. o side Walls facing three side 6 Tighten the service port caps of gas side 3 way valve at a torque of 13 3 Ibf ft with a torque wrench Tube connector Gas DOWN switch SW1 to stop the pump down operation Note Pump down operation will stop automatically after 15 minutes if PUMP DOWN switch SW1 is not pressed again More than 3 15 16 More than 3 15 16 More than 3 15 16 SDa eeeocoqocoecooeee AAAA DAD a More than 39 3 8 Ventilate if there is refrigerant gas leakage during operation It may cause toxic gas when the refrigerant comes into contact with fire More than 39 3 7 Remove the valve caps of both of the 2 way valve Pump down operation cannot be restarted until 3 minutes after compressor Valve lid and 3 way valve Position both of the valves to Open ps is stopped This equipment must be properly earthed Earth line must not be connected to gas pipe water pipe earth of lightning rod and telephone Otherwise it may iis aahon wrench giao Liquid side Sway valve ped cause electrical shock in case of equipment breakdown or insulation breakdown 4 an R Mock AE oe aa an Sey lve sist Clos
13. power supply 208 230V 60Hz below Gas side 93 8 thickness 1 32 through circuit breaker Ganei Incorrect installation due to ignoring of the instruction will cause harm or damage and the seriousness is classified by the following indications e Connect the UL listed or CSA approved wires z Outdoor Unit CU 2518 Connecting cable minimum AWG 12 to the terminal board and connect Screws a l Z WARNING This indication shows the possibility of causing death or serious injury Min total piping length for EEn Conduit to other end of the wires to circuit breaker eM Te additional gas i 7 Connect the power supply cord and connecting wires TTT A CAUTION This indication shows the possibility of causing injury or damage to properties only If total piping length of all indoor units exceeds the Additional drain hose x Pariri and outdoor unit according tothe Plugs Gh z i minimum length listed above additionally charge with 1 4 Liquid side piping x k Valve Cover Power Supply Indoor amp outdoor The items to be followed are classified by the symbols 0 2 oz of refrigerant R410A for each additional feet of Metal Knock Out Holes Cord connection wire S Symbol with white background denotes item that is PROHIBITED from doing piping Gi 3 8 Gas side piping Side Panel Q 9 Symbol with dark background denotes item that must be carried out This illustration is for explanation purposes only fic aso naar Note i m
14. roperties as the heat Liquid side pipes Material shall Install at a Strong and firm location which is able to withstand the set s weight If the strength is not enough or installation is not properly done the set will TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND Outdoor unit insulation for the pipes Be sure to insulate both the gas side wihewndotace ot drop and cause injury Outdoor unit PIPES in the following procedure z Tube Sontector A CAUTION and liquid side pipes If the pipes are not adequately insulated ae higher For installation work follow all electrical building plumbing local codes regulations and these installation instructions If electrical circuit capacity 1 Connect a charging hose with a push pin to the Low Indoor Unit condensation or water leakages may occur Gas side pipes gi is not enough or a defect is found in electrical work it will cause electrical shock or fire side of a charging set and the service port of the gas 9 Do not use spliced wires for indoor outdoor connection cable Use the specified indoor outdoor connection cable refer to instruction INDOOR side 3 way valve Liquid side OUTDOOR UNIT ELECTRICAL WIRING and connect tightly for indoor outdoor connection Clamp the cable so that no external force will have impact on 2 Connect the micron gauge between vacuum pump and service port of outdoor units Turn on the power switch of the vacuum pump and make sure that
15. t be any animal or plant which could be affected screws ee EE Spanner 11 Thermometer an igital Micron Gauge by hot air discharged D It is advisable to avoid more 2 Remove Valve Cover Metal by loosening 2 screws q Pipe cutter Q Keep the spaces indicated by arrows from wall ceiling fence or than 2 blockage directions 3 Remove Plugs i other obstacles For better ventilation amp k 2 Do not place any obstacles which may cause a short circuit of the ruil octdoor instalation 4 Fix the conduit connectors to the knock out holes with Soave onto Boer Cover dE jaon aloha Gor Guidoor Ubi ahould be abe please consult authorized lock nuts then secure them j Metal SAFETY PRECAUTIONS D a Lee E SAE AE dealer specialist 5 Connecting wire between indoor unit and outdoor unit i k a Refi should be UL listed or CSA approved 4 conductor Read the following SAFETY PRECAUTIONS carefully before installation g efrigerant piping size wires minimum AWG16 in accordance with local Electrical work must be installed by a licensed electrician Be sure to use the correct rating of the power plug and main circuit for the model to be Outdoor Uni CU 2818 Power supply cord Lock Nuts installed Ut Dor vi g Conduit electric codes DO Nuts The caution items stated here must be followed because these important contents are related to safety The meaning of each indication used is as Eiquiol side LETA thickness 1 32 6 Wire Connection to the
16. ure in refrigeration cycle and result in explosion injury etc Outdoor unit located Outdoor unit located Indoor unit wires m b on upper side otherwise Do not add or replace refrigerant other than specified type It may cause product damage burst and injury etc For R410A model use piping flare nut and tools which is specified for R410A refrigerant Using of existing R22 piping flare nut and tools may cause abnormally high pressure in the refrigerant cycle piping and possibly result in explosion and injury Thickness or copper pipes used with R410A must be more than 1 32 Never use copper pipes thinner than 1 32 Itis desirable that the amount of residual oil is less than 0 0008 oz ft 7 D Outdoor unit 6 HEAT INSULATION Engage authorized dealer or specialist for installation If installation done by the user is incorrect it will cause water leakage electrical shock or fire EVACUATION OF THE EQUIPMENT Install according to this installation instructions strictly If installation is defective it will cause water leakage electrical shock or fire Use the attached accessories parts and specified parts for installation Otherwise it will cause the set to fall water leakage fire or electrical shock WHEN INSTALLING AN AIR CONDITIONER BE SURE Use a material with good heat resistant p
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